Geology is the study of the Earth - how it was formed, what it's made of, and how it has changed over time. The tools of geology are also used to study the surfaces of other planets in the solar system. As a geologist, you will study rocks, minerals, mountains, faults, volcanoes, and other large structures, to understand the processes and dynamics that have shaped the Earth and the solar system. This is the broadest of our majors and opens doors for a broad spectrum of future careers, including work in engineering firms, energy agencies, oil and mining industries, educational institutions, governmental agencies, and environmental firms. Geologists use a variety of observational and analytical tools to investigate the composition and structure of the Earth, with the objective of understanding how its features evolved over time. Planetary geologists may apply the same set of tools and principles to explore other objects in the solar system. Many geologists are employed by corporations or government agencies tasked with assessing natural hazards, natural resources, and the environment.